Sunflower star, sunflower seastar • Pycnopodia helianthoides

IdentificationThe sunflower star is easily recognized by its numerous long rays. It may have up to 26 rays, although juveniles typically start with 5 and grow more as they age. This species is usually orange or purple - sometimes with mottling of red-orange or purple-grey, respectively. Its upper surface is very soft and flexible. It can grow up to 1 m in diameter. Numerous orange tube feet are densely packed along the underside of its body and arms.

Habitat & RangeThe sunflower star inhabits rocky surfaces and other substrates in the intertidal and subtidal, to depths of 435 m. It is found on the Pacific coast of North America from Alaska to California.

Similar SpeciesWhile there are numerous sea stars with more than 5 or 6 rays, known as 'sunstars,' no other species has as many rays or is as soft as the sunflower star. The rays are thinner, longer, and more flexible than other species as well.